Investigators suggested that infrequent maintenance requirements, among other issues, appeared to contribute to the faulty part that caused the crash, which killed 15 people last year.

The NTSB also revealed that the crew of the crashed jet had been reassigned to it after their original plane was taken out of service.

A UPS plane crash that killed 15 people last year might have been prevented if an original inspection schedule hadn’t been relaxed, but mechanics didn’t get a close look at the parts that should have kept an engine from flying off its wing because federal regulators allowed Boeing to recommend checking them less frequently,

The nail-biting incident took place about 80 miles east off the coast of Melbourne, Florida, which is about 175 miles north of Miami.

Eleven people who survived a plane crash about 50 miles off the Florida coast were on a life raft for hours and had no idea anyone was coming to save them when rescue crews from the U.S. military arrived.